I'm shooting a Nitrum 34 @ 50lbs with 30" 5mm FMJ arrows. When I bought the vanes, they came with the standard 2" Blazer vanes, which is great with 100 gr. points. I've moved up in weight to points weighing 150 grains plus whatever the insert weighs.
My question is this. With the added weight on the front should I increase the vane length to maybe 3"? I rarely shoot past 50 meters.
Vane size in relation to point weight
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